U.S. patent application number 14/804905 was filed with the patent office on 2017-01-26 for backboard for hard disk drive and electronic device using the backboard.
The applicant listed for this patent is HON HAI PRECISION INDUSTRY CO., LTD., HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD.. Invention is credited to YANG GAO, KANG WU.
Application Number | 20170024351 14/804905 |
Document ID | / |
Family ID | 57837047 |
Filed Date | 2017-01-26 |
United States Patent
Application |
20170024351 |
Kind Code |
A1 |
GAO; YANG ; et al. |
January 26, 2017 |
BACKBOARD FOR HARD DISK DRIVE AND ELECTRONIC DEVICE USING THE
BACKBOARD
Abstract
A backboard applied in an electronic device includes a storage
extended chip, a serial attached small computer system interface
(SAS) hard disk drive (HDD) connector, a convertor, a first
election unit, and a second election unit. An input pin of the
convertor is coupled to a plurality of input pins of the SAS HDD,
to receive the data signal from the SAS HDD connector. The first
election unit is coupled to a first ground pin of the SAS HDD
connector, enable pins of the convertor and the storage extended
chip. The second election unit is coupled to the first ground pin
of the SAS HDD connector and an enable pin of the storage extended
chip. When the SAS HDD connector is coupled to a SATA HDD or a SAS
HDD, the storage extended chip operates and receives a SAS signal
from the SAS HDD connector.
Inventors: |
GAO; YANG; (Shenzhen,
CN) ; WU; KANG; (Shenzhen, CN) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD.
HON HAI PRECISION INDUSTRY CO., LTD. |
Shenzhen
New Taipei |
|
CN
TW |
|
|
Family ID: |
57837047 |
Appl. No.: |
14/804905 |
Filed: |
July 21, 2015 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
G06F 13/4221 20130101;
G06F 13/4068 20130101; G06F 2213/0028 20130101; G06F 13/4022
20130101 |
International
Class: |
G06F 13/42 20060101
G06F013/42; G06F 13/40 20060101 G06F013/40 |
Claims
1. A backboard comprising: a storage extended chip comprising an
enable pin, an input pin, and an output pin; a serial attached
small computer system interface (SAS) hard disk drive (HDD)
connector comprising a plurality of input pins and a plurality of
ground pins, and a data output; a convertor comprising an input
pin, an enable pin, and an output pin, wherein the input pin of the
convertor is coupled to the plurality of input pins of the SAS HDD,
to receive data from the data output; an election unit comprising
an input terminal, a first election unit, and a second election
unit, wherein the first election unit is coupled to a first ground
pin of the SAS HDD connector, the enable pin of the convertor, and
the enable pin of the storage extended chip, the second election
unit is coupled to the first ground pin of the SAS HDD connector
and the enable pin of the storage extended chip.
2. The backboard of claim 1, wherein when the SAS HDD connector is
coupled to a SATA HDD, the first ground pin of the SAS HDD
connector outputs a digital high level signal to the input terminal
of the election unit, the first election unit operates, the second
election does not operate, the first election unit outputs a first
control signal to the enable pin of the convertor and the enable
pin of the storage extended chip, the storage extended chip
operates and receives a SAS signal from the SAS HDD connector.
3. The backboard of claim 2, wherein when the SAS HDD connector is
coupled to a SAS HDD, the first ground pin of the SAS HDD connector
is grounded, and outputs a digital low level signal to the input
terminal of the election unit, the first election unit does not
operate, the second election unit operates, the second election
unit outputs a second control signal to the enable pin of the
storage extended chip, the storage extended chip operates and
receives a SAS signal from the SAS HDD connector.
4. The backboard of claim 3, wherein the first election unit
comprise a first electronic switch and a first resistor, a first
terminal of the first electronic switch is coupled to a first input
pin of the SAS HDD connector, and is coupled to a first power
source terminal through the first resistor; a second terminal of
the first electronic switch is grounded; a third terminal of the
first electronic switch is coupled the power source terminal, and
is coupled to the enable pins of the convertor and the storage
extended chip.
5. The backboard of claim 4, wherein the first electronic switch is
an npn bipolar junction transistor (BJT), the first to third
terminals of the npn BJT correspond to a base, an emitter, and a
collector of the BJT, respectively.
6. The backboard of claim 5, wherein the second electronic switch
is a pnp bipolar junction transistor (BJT), the first to third
terminals of the pnp BJT correspond to a base, an emitter, and a
collector of the BJT, respectively.
7. The backboard of claim 1, wherein the second election unit
includes a second electronic switch and a second resistor, a first
terminal of the second electronic switch is coupled the input
terminal of the election unit, and is coupled to the power source
terminal through the second resistor; a second terminal of the
second electronic switch is grounded; a third terminal of the
second electronic switch is coupled to the power source terminal,
and is coupled to the enable pin of the storage extended chip.
8. An electronic device comprising a backboard, the backboard
comprising: a storage extended chip comprising an enable pin, an
input pin, and an output pin; a serial attached small computer
system interface (SAS) hard disk drive (HDD) connector comprising a
plurality of input pins and a plurality of ground pins, and a data
output; a convertor comprising an input pin, an enable pin, and an
output pin, wherein the input pin of the convertor is coupled to
the plurality of input pins of the SAS HDD, to receive data from
the data output; an election unit comprising an input terminal, a
first election unit, and a second election unit, wherein the first
election unit is coupled to a first ground pin of the SAS HDD
connector, the enable pin of the convertor, and the enable pin of
the storage extended chip, the second election unit is coupled to
the first ground pin of the SAS HDD connector and the enable pin of
the storage extended chip.
9. The electronic device of claim 8, wherein when the SAS HDD
connector is coupled to a SATA HDD, the first ground pin of the SAS
HDD connector outputs a digital high level signal to the input
terminal of the election unit, the first election unit operates,
the second election does not operate, the first election unit
outputs a first control signal to the enable pin of the convertor
and the enable pin of the storage extended chip, the storage
extended chip operates and receives a SAS signal from the SAS HDD
connector.
10. The electronic device of claim 9, wherein when the SAS HDD
connector is coupled to a SAS HDD, the first ground pin of the SAS
HDD connector is grounded, and outputs a digital low level signal
to the input terminal of the election unit, the first election unit
does not operate, the second election unit operates, the second
election unit outputs a second control signal to the enable pin of
the storage extended chip, the storage extended chip operates and
receives a SAS signal from the SAS HDD connector.
11. The electronic device of claim 10, wherein the first election
unit comprise a first electronic switch and a first resistor, a
first terminal of the first electronic switch is coupled to a first
input pin of the SAS HDD connector, and is coupled to a first power
source terminal through the first resistor; a second terminal of
the first electronic switch is grounded; a third terminal of the
first electronic switch is coupled the power source terminal, and
is coupled to the enable pins of the convertor and the storage
extended chip.
12. The electronic device of claim 11, wherein the first electronic
switch is an npn bipolar junction transistor (BJT), the first to
third terminals of the npn BJT correspond to a base, an emitter,
and a collector of the BJT, respectively.
13. The electronic device of claim 12, wherein the second
electronic switch is a pnp bipolar junction transistor (BJT), the
first to third terminals of the pnp BJT correspond to a base, an
emitter, and a collector of the BJT, respectively.
14. The backboard of claim 8, wherein the second election unit
includes a second electronic switch and a second resistor, a first
terminal of the second electronic switch is coupled the input
terminal of the election unit, and is coupled to the power source
terminal through the second resistor; a second terminal of the
second electronic switch is grounded; a third terminal of the
second electronic switch is coupled to the power source terminal,
and is coupled to the enable pin of the storage extended chip.
Description
FIELD
[0001] The subject matter herein generally relates to a backboard
for hard disk drive and electronic device using the backboard.
BACKGROUND
[0002] Just a bunch of disks (JBOD) is a storage device with a
plurality of hard disk drives (HDD), such as serial attached small
computer system interface (SAS) HDD and serial advanced technology
attachment (SATA) HDD, to transmit SAS signal and SATA signal.
However, when the SAS signal is transmitted by the JBOD, the
redundant data can be recognized.
BRIEF DESCRIPTION OF THE DRAWINGS
[0003] Implementations of the present technology will now be
described, by way of example only, with reference to the attached
figures.
[0004] FIG. 1 is a block diagram of an example embodiment of an
electronic device.
[0005] FIG. 2 is a circuit diagram of an example embodiment of a
backboard of the electronic device of FIG. 1.
[0006] FIG. 3 is a portion schematic diagram of an embodiment of a
serial attached small computer system interface on the backboard
for hard disk drives of FIG. 2.
DETAILED DESCRIPTION
[0007] It will be appreciated that for simplicity and clarity of
illustration, where appropriate, reference numerals have been
repeated among the different figures to indicate corresponding or
analogous elements. In addition, numerous specific details are set
forth in order to provide a thorough understanding of the
embodiments described herein. However, it will be understood by
those of ordinary skill in the art that the embodiments described
herein can be practiced without these specific details. In other
instances, methods, procedures and components have not been
described in detail so as not to obscure the related relevant
feature being described. Also, the description is not to be
considered as limiting the scope of the embodiments described
herein. The drawings are not necessarily to scale and the
proportions of certain parts may be exaggerated to better
illustrate details and features of the present disclosure.
[0008] Several definitions that apply throughout this disclosure
will now be presented.
[0009] The term "coupled" is defined as connected, whether directly
or indirectly through intervening components, and is not
necessarily limited to physical connections. The connection can be
such that the objects are permanently coupled or releasably
coupled. The term "comprising," when utilized, means "including,
but not necessarily limited to"; it specifically indicates
open-ended inclusion or membership in the so-described combination,
group, series and the like.
[0010] The disclosure will now be described in relation to an
electronic device with a backboard.
[0011] FIG. 1 illustrates block diagram of an example embodiment of
an electronic device 100. The electronic device 100 includes a
backboard 10 for hard disk drives (HDDs). The electronic device 100
can be a notebook or a desktop computer.
[0012] FIG. 2 illustrates a circuit diagram of an example
embodiment of the backboard 10. The backboard 10 is configured to
couple to a serial attached small computer system interface (SAS)
HDD and a serial advanced technology attachment (SATA) HDD, and
includes a SAS HDD connector 11, a selection unit 12, a convertor
13, and a storage extended chip 30. The selection unit 12 includes
a first selection unit 120 and a second selection unit 121.
[0013] FIG. 3 illustrates a portion schematic diagram of an
embodiment of the SAS HDD connector 11 includes a plurality of
input pins SGND_1, A_RX+, A_RX-, SGND_2, A_TX-, A TX+, SGND_3,
SGND_4, B_RX+, B_RX-, SGND_5, B_TX-, B_TX+, and SGND_6. Each of the
input pins SGND_1, SGND_2, SGND_3, SGND_4, SGND_5, and SGND_6 is a
ground pin. The input pin SGND_6 of the SAS HDD connector 11 is
coupled to an input terminal In of the selection unit 12, to
transmit a first input signal output from the input pin SGND_6 to
the input terminal In of the selection unit 12. The convertor 13
includes an enable pin En, an input terminal In, and an output pin
O1. The storage extended chip 30 includes an input pin A1, A2, and
an enable pin EN, and is utilized to store and extend data from SAS
HDD or SATA HDD.
[0014] The first selection unit 120 includes an electronic switch
Q1 and a resistor R1. A first terminal of the electronic switch Q1
is coupled to the input terminal In of the selection unit 12, and
is coupled to a power source terminal P3V3 through the resistor R1.
A second terminal of the electronic switch Q1 is grounded. A third
terminal of the electronic switch Q1 is coupled to the power source
terminal P3V3, and is coupled to the enable pin En of the convertor
13 and the enable pin EN of the storage extended chip 30. A first
data signal from the input pins SGND_1, A_RX+, A_RX-, SGND_2,
A_TX-, A_TX+, and SGND_3 SAS HDD connector 11 is transmitted to the
input terminal In of the convertor 13. An output pin O1 of the
convertor 13 is coupled to an input pin A1 of the storage extended
chip 30.
[0015] The second election unit 121 includes an electronic switch
Q2 and a resistor R2. A first terminal of the electronic switch Q2
is coupled to the input terminal In of the selection unit 12, and
is coupled to the power source terminal P3V3 through the resistor
R2. A second terminal of the electronic switch Q2 is grounded. A
third terminal of the electronic switch Q2 is coupled to the power
source terminal P3V3, and is coupled to the enable pin EN of the
storage extended chip 30. A second data signal from the input pins
SGND_1, A_RX+, A_RX-, SGND_2 , A_TX-, A_TX+, SGND_3, SGND_4, B_RX+,
B_RX-, SGND_5, B_TX-, B_TX+, and SGND_6 of SAS HDD connector 11 is
transmitted to the an input pin A2 of the storage extended chip
30.
[0016] In the embodiment, the electronic switch Q1 is an npn
bipolar junction transistor (BJT). The electronic switch Q2 is a
pnp bipolar junction transistor (BJT). First to third ends of each
electronic switch correspond to a base, an emitter, and a collector
of the BJT, respectively. In other embodiments, the electronic
switch Q1 may be replaced by an n-channel metal oxide semiconductor
field-effect transistor (NMOSFET). The electronic switch Q2 may be
replaced by a p-channel metal oxide semiconductor field-effect
transistor (PMOSFET).
[0017] When the SAS HDD connector 11 is coupled to a SATA HDD, the
input pins SGND_1, A_RX+, A_RX-, SGND_2, A_TX-, A_TX+, and SGND_3
of SAS HDD connector 11 operates, and the input pins SGND_4, B_RX+,
B_RX-, SGND_5, B_TX-, B_TX+, and SGND_6 of the SAS HDD connector 11
are idle. Input pin SGND_6 of SAS HDD connector 11 outputs a
digital high level, such as logic "1", signal to the input terminal
In of the selection unit 12. The base of the electronic switch Q1
of the first election unit 120 receives the digital high level
signal from the input pin SGND_6 of SAS HDD connector 11, and is
turned on. The electronic switch Q2 of the second election unit 121
is turned off The collector of the electronic switch Q1 outputs a
digital low signal, such as logic "0", to the enable pin En of the
convertor 13 and the enable pin EN of the storage extended chip 30.
The convertor 13 operates, and converts the SATA signal received
from the SGND_1, A_RX+, A_RX-, SGND_2, A_TX-, A_TX+, and SGND_3 of
the SAS HDD connector 11 to a SAS signal. The enable pin EN of the
storage extended chip 30 receives a digital low signal from the
collector of the electronic switch Q1. The input pin A1 of the
storage extended chip 30 receives the SAS signal from the output
pin O1 of the convertor 13.
[0018] When the SAS HDD connector 11 is coupled to a SAS HDD, the
input pins SGND_1, A_RX+, A_RX-, SGND_2, A_TX-, A_TX+, SGND_3,
SGND_4, B_RX+, B_RX-, SGND_5, B_TX-, B_TX+, and SGND_6 of SAS HDD
connector 11 operates. The input pin SGND_6 of the SAS HDD
connector 11 is grounded, and outputs a digital low signal to the
input terminal In of the selection unit 12. Each base of the
electronic switches Q1 and Q2 receives the digital low signal from
the input pin SGND_6 of the SAS HDD connector 11. The electronic
switch Q1 is turned off The electronic switch Q2 is turned on. The
collector of the electronic switch Q2 outputs a digital low signal
to the enable pin EN of the storage extended chip 30. A SAS signal
output from the input pins SGND_1, A_RX+, A_RX-, SGND_2 , A_TX-,
A_TX+, SGND_3, SGND_4, B_RX+, B RX-, SGND_5, B_TX-, B_TX+, SGND_6
of the SAS HDD connector 11 is transmitted to the input pin A2 of
the storage extended chip 30.
[0019] Therefore, the SAS HDD and the SATA HDD can share a
backboard 10. When the backboard 10 is coupled to the SATA HDD, the
SATA signal from the SATA HDD can be converted to the SAS signal.
The SAS signal can recognize the redundant data.
[0020] While the disclosure has been described by way of example
and in terms of the embodiment, it is to be understood that the
disclosure is not limited thereto. On the contrary, it is intended
to cover various modifications and similar arrangements as would be
apparent to those skilled in the art. Therefore, the range of the
appended claims should be accorded the broadest interpretation so
as to encompass all such modifications and similar
arrangements.
* * * * *